Pachycereusis a diminished genus of about ten species and includes some of the largest specimens in the entireCactaceaefamily . The largest cactus ever recorded was aPachycereus , specifically a colossalPachycereus pringlei , commonly known as Cardon Cactus , which astoundingly grew over 60 metrical unit ( 18.3 m ) tall . Though somePachycereusmay be massive , many of these cacti grow to a much more manageable size of it . They are often cultivate in the American Southwest and Mexico , where they are autochthonal .
The most common mintage are Pachycereus pringlei and Pachycereus marginatus , which can be shaped as a fencing or a feature in your landscape . These cacti have a columniform growth habit , with rib on the stems and many treelike branches . Superficially , P. pringlei resemble the more vulgar Saguaro and is often mistaken for it . However , like most other plants that can grow to staggering size , Pachycereus cacti grow inordinately slowly for hundreds of years . Thus , they require nigh zero aid , provided they are levy in a desert environment . These magnificent specimens were once much more common , but many have been clear or switch off down . Nonetheless , entire woods ofPachycereusstill exist in Mexico , and this stark and beautiful cactus is a delight to see in person . Their spiny , foreign , prodigious shapes are a great exercise of the twisted ravisher of which cacti are capable .
Light : As much sun as potential . piddle : OverwateringPachycereusis a surefire agency to damage them . Arid , red-hot condition , just like the Mexican desert , are idealistic . You really should not have to water them at all . Temperature : Their circumstance should be as desertlike as potential , which think of very high temperature . Soil : Pachycereuscacti have developed the ability to get on stone without soil present . It accomplish this through a symbiotic relationship with bacterium in its roots , which glean nutrients from the rock and hand them on to the plant . If you grow them in container , potting soilis fine , but be mindful that it may not even be necessary . fertiliser : Although many cacti benefit from feeding with a cactus fertilizer , feed them will not spite .
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Like most cacti , these plant circularise by cutting . lop a branch and replant in well - drained territory . check that to stand the cactus up in an empty container to have its remnant heal off before you replant it . This will keep its stem mold flop , and cacti with dried ends form etymon more well after plant .
This is inapplicable to most scenario in which Pachycereus would be develop . If you select to develop a smallPachycereus pringleiin a container , repot it can be helpful . Repot it like any other cactus : remove it from the pile , cut away any dead material from the roots , and replant . Watch out for the spines . They can really ruin your twenty-four hour period .
These extraordinarily low-toned - sustenance cacti can fundamentally grow untouched for decades , so there is not much you need to worry about . However , they must receive adequate sun and heat and be heedful around their backbone . If grow in containers , ensure they are repotted and their dirt is not too damp . Other than that , these plants are about as childlike and hands - off as it gets .
Source : about.com
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